31324425 has 48 divisors (see below), whose sum is σ = 57877248. Its totient is φ = 14817600.

The previous prime is 31324417. The next prime is 31324439. The reversal of 31324425 is 52442313.

It is not a de Polignac number, because 31324425 - 2³ = 31324417 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31324395 and 31324404.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 35034 + ... + 35916.

It is an arithmetic number, because the mean of its divisors is an integer number (1205776).

Almost surely, 2^31324425 is an apocalyptic number.

It is an amenable number.

31324425 is a deficient number, since it is larger than the sum of its proper divisors (26552823).

31324425 is a wasteful number, since it uses less digits than its factorization.

31324425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 950 (or 945 counting only the distinct ones).

The product of its digits is 2880, while the sum is 24.

The square root of 31324425 is about 5596.8227593877. The cubic root of 31324425 is about 315.2301165588.

Adding to 31324425 its reverse (52442313), we get a palindrome (83766738).

It can be divided in two parts, 3132 and 4425, that added together give a palindrome (7557).

The spelling of 31324425 in words is "thirty-one million, three hundred twenty-four thousand, four hundred twenty-five".